1 files changed, 114 insertions, 0 deletions
diff --git a/trunk/qpid/java/client/example/src/main/java/org/apache/qpid/example/amqpexample/pubsub/TopicListener.java b/trunk/qpid/java/client/example/src/main/java/org/apache/qpid/example/amqpexample/pubsub/TopicListener.java
new file mode 100755
index 0000000000..dd9307ca84
--- /dev/null
+++ b/trunk/qpid/java/client/example/src/main/java/org/apache/qpid/example/amqpexample/pubsub/TopicListener.java
@@ -0,0 +1,114 @@
+package org.apache.qpid.example.amqpexample.pubsub;
+/*
+ * 
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ * 
+ */
+
+
+import java.nio.ByteBuffer;
+
+import org.apache.qpid.transport.Connection;
+import org.apache.qpid.transport.DeliveryProperties;
+import org.apache.qpid.transport.MessageAcceptMode;
+import org.apache.qpid.transport.MessageAcquireMode;
+import org.apache.qpid.transport.MessageCreditUnit;
+import org.apache.qpid.transport.MessageTransfer;
+import org.apache.qpid.transport.Option;
+import org.apache.qpid.transport.Session;
+import org.apache.qpid.transport.SessionException;
+import org.apache.qpid.transport.SessionListener;
+
+
+public class TopicListener implements SessionListener
+{
+
+    public void opened(Session ssn) {}
+
+    public void resumed(Session ssn) {}
+
+    public void message(Session ssn, MessageTransfer xfr)
+    {
+        DeliveryProperties dp = xfr.getHeader().get(DeliveryProperties.class);
+        System.out.println("Message: " + xfr + " with routing_key " + dp.getRoutingKey());
+    }
+
+    public void exception(Session ssn, SessionException exc)
+    {
+        exc.printStackTrace();
+    }
+
+    public void closed(Session ssn) {}
+
+    public void prepareQueue(Session session,String queueName,String bindingKey)
+    {
+        session.queueDeclare(queueName, null, null, Option.EXCLUSIVE, Option.AUTO_DELETE);
+        session.exchangeBind(queueName, "amq.topic", bindingKey, null);
+        session.exchangeBind(queueName, "amq.topic", "control", null);
+
+        session.messageSubscribe(queueName, queueName,
+                                 MessageAcceptMode.NONE,
+                                 MessageAcquireMode.PRE_ACQUIRED,
+                                 null, 0, null);
+        // issue credits
+        // XXX: need to be able to set to null
+        session.messageFlow(queueName, MessageCreditUnit.BYTE, Session.UNLIMITED_CREDIT);
+        session.messageFlow(queueName, MessageCreditUnit.MESSAGE, 24);
+    }
+
+    public void cancelSubscription(Session session,String dest)
+    {
+        session.messageCancel(dest);
+    }
+
+    public static void main(String[] args) throws InterruptedException
+    {
+        // Create connection
+        Connection con = new Connection();
+        con.connect("localhost", 5672, "test", "guest", "guest",false);
+
+        // Create session
+        Session session = con.createSession(0);
+
+        // Create an instance of the listener
+        TopicListener listener = new TopicListener();
+        session.setSessionListener(listener);
+
+        listener.prepareQueue(session,"usa", "usa.#");
+        listener.prepareQueue(session,"europe", "europe.#");
+        listener.prepareQueue(session,"news", "#.news");
+        listener.prepareQueue(session,"weather", "#.weather");
+
+        // confirm completion
+        session.sync();
+
+        System.out.println("Waiting 100 seconds for messages");
+        Thread.sleep(100*1000);
+
+        System.out.println("Shutting down listeners");
+        listener.cancelSubscription(session,"usa");
+        listener.cancelSubscription(session,"europe");
+        listener.cancelSubscription(session,"news");
+        listener.cancelSubscription(session,"weather");
+
+        //cleanup
+        session.close();
+        con.close();
+    }
+
+}